Meggitt Sensing Systems, a Meggitt group division, has introduced the Endevco® model 73 piezoresistive triaxial shock accelerometer, designed to provide high-reliability measurements in three orthogonal directions within a footprint measuring less than 0.2 square inches (5.08 mm2). The model 73 is intended for such critical applications as high-shock data recorders, missile fuzing and weapon systems.

Design of the model 73 incorporates use of three Endevco® model 71 high-g piezoresistive shock accelerometers, housed on a specialty mounting block, with two available mounting options: either a surface mount technology (SMT) leadless chip carrier (LCC) package for reflow soldering with structural epoxy underfil; or a flex circuit option, allowing the unit to be adhesively mounted with electrical connections made via solder pads. Units are available in ranges of 2000 g; 6000 g; 20,000 g and 60,000 g with frequency response capabilities down to DC (steady state), making them an ideal choice for the support of long duration transient measurements. In addition, Endevco® model 73 accelerometers offer minimal zero shift after shock and are undamped for broad frequency content and the prevention of phase shift. Their compact size and unique construction allow for high resonance frequencies and exceptional bandwidth with accurate and repeatable responses to fast rise times and short duration shock motion.

Recommended accessories for the Endevco® model 73 include the new model 126 three-channel DC bridge amplifier; the model 136 three-channel signal conditioner; and the model 436 DC differential voltage amplifier. Please note that the global sale of this product is subject to International Traffic in Arms Regulations (ITAR), and as such, a license is required for shipments outside the U.S., with the product also potentially subject to other restrictions on its sale and use.